Pneumatic lint collection apparatus for textile machines



D. B. PARRISH Feb. 23, 1954 PNEUMATIC LINT COLLECTION APPARATUS FOR TEXTILE MACHINES Filed NOV. 19, 1951 2 Sheets-Sheet. l

INVENTOR: fi /wv/s B. FARE/5H.

ATTORNEYS D. B. PARRISH Feb. 23, 1954 PNEUMATIC LINT COLLECTION APPARATUS FOR TEXTILE MACHINES 2 Sheets-Sheet 2 Filed NOV. 19, 1951 INVENTOR: fii/v/ws 6 Hwy/5H.

ATTORNEYS Patented Feb. 23, 1 954 PNEUMATIC LINT COLLECTION APPARATUS FOR TEXTILE MACHINES Dennis E. Parrish, Clover, S. 0. Application November 19, 1951, Serial No. 257,075

2 Claims.

This invention relates to apparatus for collecting lint and foreign matter from textile machines and more especially to a lint collection apparatus for elongated textile machines, such as spinning machines and twisters.

One type of apparatus heretofore in use for preventing the accumulation of lint and other foreign matter on the drawing rolls of a twister or spinning frame has included a series of relatively small suction pipes of substantially the same diameter as the diameter of the drawing rolls of the machines. These relatively small suction pipes have been positioned adjacent the drawing rolls and have had perforations in the upper walls thereof which were disposed in close proximity to the lower surfaces of the drawing rolls. Suitable relatively small ducts extended from each of these relatively small horizontal pipes to a relatively large longitudinally extending suction pipe having an opening in one end thereof and being connected at its other end to a suitable housing. The housing contained a filter, such as a screen or the like and a suction fan disposed on the opposite sides of the filter from the suction pipe to thus create suction in the relatively s large manifold or suction pipe and relatively small pipes to draw lint or foreign matter from the rolls through the pipes and to collect the lint upon the screen or filter.

The usual housing in which the screen and filter have heretofore been disposed has a discharge opening therein on the opposite side thereof from the suction pipe and a blast of air generated by the fan would be exhausted through this opening. In some instances, this air has been carried away through extensive ductworks. but generally it has been exhausted into the area adjacent the machine. Since the housing is usually disposed in about the same elevation as the head of a person walking past the same, the blast of air therefrom has been objectionable and workmen moving by the machine in a textile plant would have to dodge the hot blast of air in order to escape the same and to prevent lint and the like from being blown onto them.

Further, it should be noted that humidity is an important factor in the processing of textile fibers and most spinning and twisting machines are equipped with humidifiers for adding moisture to the air to increase the humidity thereof. The hot blast of air which is exhausted from the housing of cleaning apparatus of the type described tends to lower the humidity of the air around the textile machine to thus require increased use of humidifiers, as well as increasing the dimculty of maintaining proper humidity. Frequently, the humidifiers are placed adjacent the housing for the cleaning apparatus and the hot blast of air from this housing more or less nullifies the effect of the humidifier.

It is, therefore, an object of this invention to provide means for utilizing the blast of exhaust air from the housing above described to further prevent accumulations of lint and other foreign matter on parts of the machine for better cleaning and to prevent the hot air from being exhausted into the aisle at one end of the machine. To this end, I have provided a duct having one thereof communicating with the discharge opening in the housing, and a portion extending longitudinally of the machine near the lower portion of the machine and this duct being closed at its end remote from the housing and also being provided with a row of longitudinally spaced openings at the upper portion thereof to thus exhaust the exhaust air from the housing through these openings. This creates blasts of air upwardly past the various parts of the machine to maintain agitation of the lint and other foreign matter which would normally collect upon adjacent parts of the machine. Thus, a substantial part of the lint or foreign matter which would normally collect on the lower portion of the machine is directed upwardly and drawn into the conventional suction pipes disposed adjacent the drawing or drafting rolls of the machine to be collected on the screen in said housing. Lint and other foreign matter which does not settle on the drawing or drafting rolls or is not picked up by the conventional suction pipes would, nevertheless, remain in agitation with the result that this surplus foreign matter or lint would collect at points remote from the machine thereby greatly facilitating the operation of the machine and the periodic cleaning of the machine.

Some of the objects of the invention having been stated, other objects will appear as the description proceeds, when taken in connection with the accompanying drawings, in which-- Figure 1 is a fragmentary, somewhat schematic, elevation of a spinning frame, roving frame, twister or the like showing the improved lint agitating and collection apparatus mounted thereon;

Figure 2 is an elevation looking at the lefthand end of Figure 1 with the upper portion thereof broken away;

Figure 3 isa fragmentary, somewhat schematic, elevation of the textile machine looking 3 at the opposite side from that shown in Figure l with parts broken away;

Figure 4 is a sectional plan view taken substantially along the line 4-4 in Figure 3 and showing the textile machine somewhat schematically;

Figure 5 is a schematic vertical sectional view taken substantially along the line 5-5 in Figure 3;

Figure 6 is a fragmentary longitudinal vertical sectional view taken substantially along the line 66 in Figure 4 illustrating a portion of the improved compressed air discharge-pipe.

Referring more specific-ally to theedrawings the numeral II] broadly designates the frame of an elongated textile machine such as a spinning machine, twister machine, roving machine or the like and which frame comprises a head end frame member II and a foot end frame member.

rail I6 is. spaced aboye ,thespindle. rail I5 and,

has a plurality ofring lfia thereon. The bolster or pindlerail I5=usually has a plurality of spindles Idarnounted thereon which are driven by means of endless tapes or cords-I1 which extend inwardly-andareguided bypulleys ill so as to at least partially encircle a spindle driving cylinder for driving the spindles I5a in the usual manner.

The cylinder lu is mounted centrally of the machine and extendslongitudinally thereof and is mounted on .a driVeshaft 2I which is rotatably mountedcin the frarnemembers -II and i2 in aconventional manner a d is driven continuously by any suitable-means,such-asV-pulleys 22 (FigureZ), which are engaged by V-belts23.

The- V-belts. 23 extend I downwardly. and aremounted on corresponding V--.-pulleys 24 which are fixed, on a shaft 25-of an electric motor 26. Thev electricmotorlfiwhas electric wires 2] and 23 .extending,therefrom to a suitable source of electrical energy not shown.

The. particular type of textile machine shown in Figures 1, 2, 3,;4@and 5 has a suitable creel stand, generally designated at 3 I, thereon which is disposed above and supported by the end frame members and. I2. The creelfilcarries a plurality of yarn filled bobbins or spools 32- from each of which asstrand ofwyarn Y (Figure 5) is directed to a series of drawing or drafting rolls 34- which are shown schematically in Figures 1, 3 and 5. Of course, the yarns Y extend-from the drawing rolls 34 downwardlyto bobbins; 35 which are supportedon the spindles-I 5a,,

Now, there is, disposed. in parallel relationto and adjacent the longitudinally extending groupsof the drawing rolls 3 4.aplurality of longitudinally extending suction tubes or relatively small pipes .diLeach ofthesepipes being provided-with at least one lo ngitudinallyextending opening or 4 slot 4| (Figure 5) in the upper portion thereof disposedin; closely spaced relation to the lower surfaces ofthe adjacent drawing rolls 34. Each of the suction tubes or pipes has ,a relatively small pipe 42. connected thereto for communicaion the ew h z l a llithrfls. h wn..;i -'Eieure .5,..

extends inwardly towards the center of the machine and then downwardly and is connected to a relatively large longitudinally extending manifold pipe or duct broadly designated at 43 and which is shown as being rectangular in crosssection in Figures 2 and 5.

The manifold duct 43 has bottom and top walls 44 and 45 and side walls 46 and is closed at one end thereof, preferably; the end adjacent the head endframemember II; by an endwall 41. This end wall 41 is provided with an opening 50 therein to permit air to be drawn therethrough by means to belater described and this air will havei'rtheiefiect of an aspirator on the pipes 42 and 4I, thus, creating a suction in the pipes 42 and-4Ir Whereupon the lint and other foreign matter whichenormally collects on the drawing rolls 34 will be sucked through the openings 4| in thesuction tubes 40 and thus through the pipes 42 and 43.

Referring to: Figure :1, it, will be; observed! that the -manifold; duct :43 extends longitudinally 'of. the ,mach-inebelow the horizontal plane :of. the; rail 14 and through thefoot end frame :member I2, this foot end framegmemberdzsbeing provided with the ;usual opening:; I 2a therethrhugh,

- through-which they-manifold-duct.1.43;extends;1

The manifo dduct; A3;;then;.curv.es upwardly and is connected to; a; collecting unitxor i suction .unit housihafi. tvhichyis substantially ,cubicalin shape and which has chambers,-52,,and .53:.th-erein. The: pi e. or -manifold duct .43 isiconnectedto the bots-x tom of the housing 51I ;for;xcommunicationrtwith= the chamber 52. The-;-chambers:;52 and: :53. are defined -at ,theipjuncturegby a-,.,suitable afilter gor screen 54,: whichjs showmschematically inwFig'r urel.

The chamber53 {has suctionz means. disposed therein suchgas :a centrifugal fan, .55.: This fan; 55 sis fixedq on a; shaft 56; rotatably" mounted in the corresponding walla, ofthe, housing 5 I x and which projects; outwardly relative .to .theisframe. Iii and ;has--a;,sprocke t wheel/51 fixed thereon. The ,sprocketswheel 5'1l'is engagedgbyuan endless sprocket chain fill which extends downwardly .in: Figuresl, 2--and; 4/and -engages-a sprocket wheel GI fixed on, a shaftifi2 -;;extending: from an elec tric. motor -63 The-housing-SI .is ;supported on a platform 64 suitably securedzto bracketsi 84w adpacentrthe upper end; thereof.; The platform 64 also supports, -the,;,electric motor. 63,. which issuitably secured; to the lower surf ace thereof as by screws- 65. The {electric motor. 63 1; has wires;

sourceof electricalenergy;notshown.v

It is thus seem-that the-exhaust for ysuction' :farr 55 creates a suctionrin theychamber'SZ :thereby" causing the lint and other; foreign-matterzthat enters the .manifoldij (111017;:43" to be drawnwinto; the chamberfizgand against :thescreen orfilter 5 h patt cu argscreenpr filter :54-isofxa type which; may be easily=;removed: from the I housing a 5 l. r ca y: in 1 111611; to. remove; the accumua lated linttherefrcm,

The structure thus :far; describedrelating to the SUCtiOIIQmEEtIISJiSI commonly referred to as a Pneumafilf attachment?- and it ".is.-.with this: apparatus, that the.;;i1r11; rovecfl Iintwagitating-and;

collectin meansis adaptedto be .used;

It might be, stated that; heretofore, the housing, 5 I :has; had an opening gin: the outer wall thereof relative to. the. frame I D cdisposed radj as cent thegupperywall thereof-aandthrough which" opening,..rthe compressed :aim'created: bywthe'=fa'n"- 55 was exhausted. As is well known, the temperature and humidity in a textile plant is relatively high with the result that it was extremely uncomfortable for the operators or workmen in the textile plant to move past the discharge opening heretofore provided in the housing 5|. Also, the compressed air created by the fan 55 was usually wasted and acted to decrease the humidity.

Now, in order to utilize the compressed air dis-charged from the chamber 53 of the housing 5i to provide additional cleaning means for the machine and prevent the humidity from being lowered by the axhaust air, I have relocated the exhaust opening in the chamber 53 of the housing 5| as shown at 53a in Figure 2 and have connected to the lower bottom wall of the chamber 53 a substantially rectangular branch duct 15, the upper end of which communicates with the opening 53a.

The branch duct or pipe extends downwardly in Figuresil, 2 and 3 and inwardly and has a frustro-pyramidal pipe fitting 15 connected thereto for communication therewith. The end of the pipe fitting 15 remote from the branch duct 75 has one end of a lint agitating exhaust pipe 11 connected thereto for communication therewith and which extends longitudinally of the machine adjacent the lower portion thereof and which is supported by any suitable means such as strap members 80, only one of which is shown in Figures 3, 4 and 5. These strap members 80 partially surround the pipe 11, which is preferably circular in cross-section, and extend outwardly and are suitably secured to corresponding -frame members, such as the Sampsons 13.

As heretofore stated, the pipe 11 extends longitudinally of the machine for substantially the entire length thereof and, it will be observed in Figure 6, that the end of the pipe H remote from the fitting I6 is closed, as at 8|. The uppermost portion of the wall of the pipe TI is provided with a longitudinally extending row of spaced openings or apertures 82.

Now, as the fan 55 rotates to create suction in the chamber 52, the manifold duct 43 and the pipes 42 and 40, the compressed air created by the fan 55 is discharged through the opening 53a (Figure 2). The compressed air then flows through the duct 15, the pipe fitting l6 and the pipe 11 to be exhausted through the apertures 82. These apertures 82 being relatively small, the compressed air will be emitted therefrom at a relatively high force as compared with the force of the compressed air passing through the duct 15, the pipe fitting l6 and into the pipe Tl. Thus, an upward blast of air is emitted from each of the apertures 82 and these blasts of compressed air create a continuous turbulence in the air adjacent the various parts of the textile machine which are disposed above the pipe ll. This prevents any lint or other foreign matter from accumulating on any of the parts of the machine disposed above the pipe 11 and with the result that the lint and foreign matter will settle only at points remote from the machine while that portion of the lint and other foreign matter which is directed upwardly onto or adjacent the drawing rolls 34 will be sucked into the suction tubes 40 to finally become lodged against the right-hand surface of the screen or filter 54 in Figure 1 or against the surface of the screen or filter 54 disposed adjacent the chamber 52.

It is thus seen that I have provided an aid-- cient system of utilizing the exhaust air from an air cleaner for a textile machine which comprises conducting the air downwardly from said cleaner and then longitudinally of the textile machine and then upwardly in a plurality of blasts to create a constant circulation of air about the parts of the machine for better cleaning thereof.

In the drawings and specification, there has been set forth a preferred embodiment of the invention and although specific terms are employed, they are used in a generic and descriptive sense only and not for purposes of limitation, the scope of the invention being defined in the claims.

I claim:

1. In a textile machine having an air cleaner comprising suction tubes disposed at the upper portion of said machine and connected to an open-end housing mounted on one end of said machine and having a suction fan and a filter therein, means for utilizing the exhaust air from said suction fan comprising means for closing the open end of said housing, a branch pipe communicatively connected to said housing and extending downwardly therefrom to the lower portion of said machine, a lint agitating exhaust pipe connected at one end to said branch pipe and extending longitudinally of the machine at the lower portion thereof and being closed at its other end, said lint agitating exhaust pipe having a plurality of longitudinally spaced openings in the upper portion thereof to permit said exhaust air to be emitted therefrom in a plurality of upwardly directed blasts for additionally cleaning the machine.

2. In a textile machine having an air cleaner comprising suction tubes disposed at the upper portion of said machine and connected to an open-end housing mounted at one end of said machine and having a suction fan and a filter therein, means for utilizing the exhaust air from said suction fan comprising means for closing the open end of said housing, a branch pipe connected to said housing and forming the only outlet for said housing, said branch pipe extending downwardly from said housing to the lower portion of said machine and then extending inwardly toward the end of said machine, a fitting connected to the lower end of said branch pipe, a lint agitating exhaust pipe having one end thereof connected to said fitting and extending longitudinally through the lower portion of the textile machine and having its other end closed, said lint agitating exhaust pipe having a plurality of longitudinally spaced openings in the upper portion thereof to permit exhaust air to escape therefrom in a plurality of upwardly directed blasts thus causing constant circulation of air about the parts of the machine disposed above said lint agitating exhaust pipe to clean the same.

DENNIS B. PARRISH.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 1,982,997 Linder Dec. 4, 1934 2,140,420 Eaddy Dec. 13, 1938 2,431,726 Bechtler Dec. 2, 1947 

